> Markdown version of [/jobs/ext/4690654-senior-software-engineer-test-infrastructure-quality-platforms](https://www.wearedevelopers.com/jobs/ext/4690654-senior-software-engineer-test-infrastructure-quality-platforms). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md).

---

# Senior Software Engineer, Test Infrastructure & Quality Platforms

- **Company:** Interactive Brokers
- **Location:** Greenwich, CT, United States
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Testing (Software), Application Programming Interfaces (APIs), Automation of Tests, Code Review, Databases, Continuous Integration, Data Structures, Distributed Systems, Github, Python (Programming Language), Machine Learning, Prometheus, Software Engineering, Data Streaming, Datadog, Great Expectations (Foster Youth College-readiness and Support Program), Grafana, Backend, Pytest, Gitlab-ci, Information Technology, Production Code, Front End Software Development, Jenkins
- **Published:** November 12, 2026
- **Apply:** https://www.careerbuilder.com/job-details/senior-software-engineer-test-infrastructure-quality-platforms-greenwich-ct--893a62b3-8e79-4824-ab39-f47642921cf5

## About the Role

Software Engineering, Software Testing, Testing, Software Engineering, Surveillance, Leadership, Regulatory Compliance, Data Science, Test Plan/Schedule, Quality Monitoring, Bachelor's degree in Computer Science, Mathematics, Statistics, Physics, or a related quantitative field5+ years of professional software engineering experience, with strong production-quality PythonSolid software engineering fundamentals: data structures, code review, and system designExperience designing and building a test framework, or a significant part of one, and maintaining it over timeDeep pytest experience: fixtures, plugins, parametrization, and scaling large suitesGit and CI/CD experience (e.g., Jenkins, GitHub Actions, GitLab CI)Strong written and verbal communication, with close attention to detail

Strongly preferred

Experience testing data-intensive or distributed systems (pipelines, streaming, databases, APIs), including data quality and lineage tools (Manta, Ataccama, Great Expectations)Monitoring and observability tools (Grafana, Prometheus, Datadog, ELK)

## Description

This is Hybrid role (3 days in office /2 days remote)About the teamThe Compliance Surveillance team builds the systems that detect market manipulation and financial crime across millions of client accounts. Our platforms process more than 1 billion order events a day, and their correctness supports regulatory compliance and market fairness.The roleWe are looking for a senior software engineer who specializes in testing and quality. You will design, build, and own the test frameworks and quality infrastructure for our surveillance systems. This is a software engineering role, not a test-writing role. You will write production-quality code, make system design decisions, and own the architecture of how we test, measure, and monitor quality. You will work directly with developers and data scientists, with a direct line to engineering leadership.What you'll do

Own the architecture of our test frameworks, covering backend, frontend, and machine-learning pipelines. The core is a scalable Python/pytest framework.Treat test infrastructure as a product: architecture, code review, and maintainability standardsBuild observability: dashboards, flaky-test detection, failure-trend reporting, and alertingDefine data quality for pipelines processing 1B+ events daily, covering completeness, accuracy, and lineageArchitect integration, performance, and contract testing for distributed, event-driven systemsDrive cross-team root-cause triage, diagnose systemic issues, and identify architectural fixesRaise engineering quality standards across development and data science